Analyzing the Evolution of WSDL Interfaces using Metrics

Recent studies have investigated the use of source code metrics to predict the change- and defect-proneness of source code. While the indicative power of these metrics was validated for several systems, it has not been tested on Service-Oriented Architectures (SOA). In particular, the SOA paradigm prescribes the development of systems through...

Dynamic analysis of SOA through monitoring and tracing

We have identified three fundamental monitoring dimensions for the maintenance and evolution of Maritime Safety and Security Systems, which are representing a class of systems that are required to be continuously online. The monitoring dimensions consist of: 'services', 'users' and 'time'. As traces crosscut these dimensions, we are interested...

Finding faulty components in a dynamic distributed system at runtime

This document describes the research performed on fault isolation in dynamic distributed systems at runtime. An existing Spectrum-based Multiple Fault Localization approach is used as the basis for fault isolation, but is adapted and optimized so it can be used for online diagnosis. The result is an algorithm, coined AIMBACH, which finds the...

A Methodology for Assessing the Benefits of Software as a Service: Perspectives and benefits when delivering Enterprise Resource Planning as service within Small and Medium Sized Enterprises

Software as a Service (SaaS) has been utilized as a means to deliver an Enterprise Resource Planning (ERP) system since the last decade. This software delivery model enables Small Medium Sized Enterprises (SMEs) to outsource the system from vendors based on pay-per-use or pay-per-period without having to do prior investments. Yet, SaaS model is...

Critical Success Factors for The Migration of Legacy Information Systems to SOA

Legacy Information Systems abbreviated as LIS are information systems that have been developed and deployed in the past and have been running critical business processes within an enterprise information system. Legacy Information Systems are considered the backbone of the organizations business since these systems are robust and carry valuable...

Researching a transition to an organized chaos in enterprise system architectures

After its founding 15 years ago, Tam Tam has encountered the limits of legacy systems used for the internal processes in recent years. To overcome these limits, multiple efforts have been made to enforce a transition to specific Enterprise Application Integration styles. Although the efforts resulted in working application interactions, the...

Architecture framework in support of effort estimation of legacy systems modernization towards a SOA environment

Because of their poor Business/IT alignment, many legacy systems lack the flexibility to support rapid changes to the business processes they implement, required by today's enterprises. Furthermore, after many years of maintenance, there is a need to manage their resulting increased complexity and maximize asset utilization through reuse. The...

Round-trip Business Process Driven SOA modelling between ARIS and Cordys

Business process modelling is the core activity in Business Process Driven SOA. ARIS is as Business Process Analysis (BPA) tool adequate for analyzing and designing business processes, while the execution and monitoring of these processes is empowered by Cordys as Business Process Management Suite (BPMS). The challenge is to enable iterative...

SOA principles applied in current methodologies: Describing guidelines for using RUP and AIM for implementing SOA solutions

In this thesis a comparison is made about how in two methodologies SOA can be implemented. This is done by looking how to integrate the principles of SOA.